Assessments - 3, GPA: 4 ( )

Fabricante : Ice-O-Matic Arquivo Tamanho: 3.3 mb Arquivo Nome : Língua de Ensino:

To Reassemble the Evaporator and Auger: 1. After the gear motor has been inspected, fasten the evaporator to the gear motor. Torque the bolts to 110 inch pounds 2. Lower the auger into the evaporator barrel, slightly turning it to match up with the drive end. Do Not Drop the auger into the evaporator. 3. Complete the reassembly by reversing the disassembly for the breaker and thrust bearing. Text Box: Evaporator Text Box: Caution: Heat sink the TXV body when unsweating or resweating the adjacent tubing. Text Box: Auger Text Box: Ice Chute Text Box: Ice Sweep Text Box: Breaker/Divider To Check the Gear Motor: 1. Remove wires from terminals 1 and 2 2. Use an ohmeter to check for continuity. If there is none, replace only the motor. If there is continuity but the motor will not start, check the motor’s start switch. 3. Remove motor end bell or motor stator. With ohnmeter wires attached to 1 and 2 move centrifugal switch actuator up and down to simulate motor rotation. If the ohnmeter does not show any change, replace the switch or motor. If the ohmeter showns an open circuit, replace the switch or motor. To Remove and Repair the Gear Motor Assembly: (Assuming that the procedures through removal of the water seal have been performed) 1. Remove the electrical wires from the gear drive motor. 2. Unscrew the four (4) cap screws holding the gear motor to the base of the machine. remove the gear motor from the machine. Note: Bench test the gear motor, check for oil leaks, noise and amp draw. To Inspect the Gear Motor: 1. Remove the cap screws holding the gear motor case halves together and pry the two cases apart. 2. To lift off the cover, lift up until you can feel internal contact, then pull the cover towards the output gear end, and lift up the cover (with drive motor attached) up and away from the gear motor case. Note: The gearcase cover, output bearings and output shaft are a pressed together assembly. 3. Inspect the oil gears amd bearings. If there is evidence of water in the oil (rusty metal, too much oil, white oil) replace the oil and damaged parts. 4. The oil charge is 14 ounces. Do not overfill. 5. Reassemble and bench test the gear motor, check for oil leaks, noise and amp draw. Text Box: Rotor Bearing Text Box: Cover and Output Gear Assembly Text Box: Centrifugal Switch Text Box: Water Shed Text Box: Auger Drive Motor To Remove the Condenser Fan Motor Assembly: (GEM0956 Shown) 1. Disconnect electrical power to the ice machine 2. Remove top panel and the service panels. 3. Unplug the fan motor wire leadsfrom the fan motors. 4. Remove the two (2)head bolt from the top end of the fan motor assembly. (Fig 1) 5. Lift up the fan motors and bracket assembly about 1.2 inch and pull out the fan assembly out the right service access hole. (Fig 2) 6. Repair as needed. 7. To Reassemble: Place the fan motor assembly lower flange holes over the two Allen head cap screws in the base, and install the hex head boltsat the top of the assembly. Plug the fan motors back in and replace the panels. Fig.1 Fig. 2 Refrigeration Service: General: This ice machine uses R404A refrigerant and polyolester oil. Do NOT use mineral oil in this refrigeration system. .When the refrigeration system is serviced, a special liquid line drier is required. It is included with replacement compressor. .R404A is not compatible with mineral oil so these ice machines use Polyolester oil. Polyolester oil absorbs water very easily. A system opened for service must be re-sealed as soon as possible (15 minutes maximum). .Special leak detection equipment is required to locate small refrigerant leaks. Usually a leak detector capable of detecting Halongenated refrigerant or HFC-134a will work. Check with the leak detector manufacturer if in doubt. .Evacuate to 300 microns. .Liquid charge the system. Access Valves: To use the access valves: .Remove the cap from the stem, use a 3/16 inch Allen wrench to check that the valve is CLOSED. Then remove the core cap. .Close the valve and replace the caps when done. The valve must be closed and the caps tightened. Instructions for Liquid Charging R404A: In preparation for charging, the low side hose should have a sight glass, and/or a restricting device (such as a “Charge Faster”) installed in it for metering liquid into the low side of the system. 1. After a through evacuation shut off the manifold valves and switch off the vacuum pump. 2. Place a drum of R404A onto an electronic scale. 3. Attach the charging hose to the drum. 4. Open the valve on the drum and purge the charging hose. 5. Zero out the scale. 6. Shut the low side access valve at the ice machine. 7. Open the discharge manifold valve full open. 8. Watch the scale, when the correct charge is shown, shut the manifold valve. Note: If all of the charge will not “go in” the discharge side: a. Shut the discharge access valve at the ice machine. b. Switch the machine on. c. Open the low side access valve at the ice machine. d. Open the low side manifold val...

Baixe o seu

Para fazer o download, introduza 2 dígitos :